Window-sash lock.



C. H. COLE.

wmo'ow SASH LOCK.

, APPLICATION FILED JAN-31,1916.

1 ,1 83,537 Patented May 16, 1916;

P k T 9 72 2 5- g 7L 3 wvewtoz Charles hf 602 CHARLES H. COLE, OF NEWYORK, N. Y.

wINnow-sAsH LooK.

Specification of Letters Patent.

Patented May 16, 1916.

Application filed January 31, 1916. Serial No. 75,200.

To all whom it may coacern:

Be it known that I, CHARLES H. COLE, a citizen of the United States, andresiding at New York, in the countyof New York and State of New York,have invented certain new and useful Improvements in Window- Sash Locks,of which the following is a specification, such as will enable thoseskilled in the art to which it appertains to make and use the same.

This invention relates to window sash locks, and the object thereof isto Provide an improved device of this class which is simple inconstruction, eflicient in operation, and comparatively inexpensive, andwhich maybe easily applied and by means of which the'sashes may besecurely locked in a closed position, and which may be manipulated so asto permit of the lowering of the top sash or raising of the lower sashfor ventilation or other purposes, whenever desired, and with this andother objects in view the invention consists in a device of the classspecified, constructed and operating as hereinafter described andclaimed.

The invention is fully disclosed in the following specification, ofwhich the accompanying drawing forms a part, in which the separate partsof my improvement are designated by suitable reference characters ineach of the views, and in which Figure l is an inside view of one sideportion of a window frame and showing the corresponding side portions ofthe top and bottom sashes with my improvement applied; Fig. 2 a sectionon the line 22 of Fig. 1; and, Fig. 3 a partial section on the line 3-3of Fig. 2, but showing only that part of the sash lock connected withthe bottom sash.

In the drawing forming part of this specification, I have shown one sideportion of the window frame, comprising one side a of saidframe, a parta of the top of the frame and a part a of the bottom of the frame, andin said figure I have also shown the corresponding side portions of thetop sash b and bottom sash c.

In the practice, of my invention, I secure to one side of the top sash ba vertically arranged plate 03 provided with spaced and cup-shapedrecesses (Z preferably semispherical in form, and the plate 05 issecured to the side of the top sash by screws e passed through thebottoms of said recesses. I also secure on the top of one corner of thebottom sash a block 7 having a cap plate 9, and mounted in connectionwith the block f and cap plate 9 is a lock arm 71. provided at its endswith spherical heads b and formed in and by the block f and plate 9 is aspherical recess z' in which one head 72. of the lock arm is placed andthe other end 71, of said lock arm is adapted to enter the recesses dlathe plate d. The plate 9 has a central raised collar 9 in the oppositeor lateral side portions of which are recesses 9 and in the operation ofthe lock arm 71. it may be turned into either of the positions shown indotted lines in Fig.1, when it is not desired to lock the sashes, so asto permit of their vertical movement, but the operative position of saidlock arm is that shown in Fig. 2, and the plate 9 and the collar 9thereof are also provided in the back side thereof with a reces s gwhich permits the loclr arm h to swing freely into the operativeposition. The plate (Z is provided below the recesses d with grooves (Zand with this construction the top sash with the lock arm in operat1veposition, as shown in Fig. 2, may be moved upwardly, or the bottom sashdownwardly, and said lock arm will slide up and down over the plate dand will engage either or any of the recesses d From the foregoing itwill be seen that the connection of the lock arm h with the part f is aball and socket connection, or a universal joint, and the sashes may besecurely locked in the closed position, and the bottom sash may be moveddownwardly and held in any desired point of adjustment, by the lock armh, and the sashes may be supported by the usual counter-balanced weightswithout interfering with the operation of my improved sash lock, andwhen this is done both sashes may be partially opened as will be readilyunderstood.

One of my improved sash locks may be placed at each side of the topsash, if de sired, and while I have shown and described the constructionwhich I prefer, my invention is not limited to the exact details thereofherein shown and described, and changes therein and modificationsthereof may be made, within the scope of the appended claims, withoutdeparting from the spirit of my invention or sacrificing its advantages.

Having fully described my invention, what I claim as new and desire tosecure by Letters Patent, is

1. In a sash look, a plate adapted to be secured to one side of the topsash and in a vertical position and provided with vertically arrangedsemi-spherical recesses having downwardly directed and tapered groovescommunicating therewith, and a lock arm provided at each end with aspherical head, said lock arm being adapted to be connected with a balland socket joint member secured to the top of one corner portion of thebottom sash and comprising a base block and a cap, said cap beingprovided in its opposite sides and in the back thereof with radialrecesses.

2. In a sash lock, a plate adapted to be secured to the side of a sashand provided with a plurality of semi-spherical recesses having taperedgrooves communicating therewith, a lock arm provided at each end with aspherical head and a suitably supported socket member with which one endof said lock arm is connected, the other end of said lock arm beingadapted to operate in connection with said semi-spherical recesses andthe tapered grooves communicating therewith.

3. In a sash look, a plate adapted to be secured to the side of a sashand provided with a plurality of semi-spherical recesses, a lock armprovided at each end with a spherical head, a suitably supported socketmember comprising a base block and a cap, said base block and cap havinga spherical recess to receive the spherical head on one end of said lockarm, the other spherical head of said arm being adapted to operate inconnection with said semi-spherical recesses, and means in said cap forholding said lock arm in an inoperative position.

In testimony that I claim the foregoing as my invention I have signed myname in presence of the subscribing witnesses this 28th day of January1916.

CHARLES H. COLE.

Witnesses:

G. MULREANY, H. E. THOMPSON.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. G.

